essentials noun
ADJ. bare, basic the bare essentials for existence
VERB + ESSENTIALS grasp Just try and grasp the essentials of the argument. | provide The relief agencies are trying to provide food and other basic essentials. | concentrate on Don't let's worry about the details at this stage. Let's concentrate on the essentials.
You can also check other dicts: essentials (English, 中文解释 ), wordnet sense, Collins Definition